But I think the most rewarding noise for us, and I'm assuming most new parents, is my son's laugh. Its amazingly wonderful to hear. And there's not just one kind! There's a different sound when he giggles at himself in the mirror, shrieks when playing "chase" down the hall, burbles when Daddy makes funny noises while trying to feed him yet another spoon of mushy baby food, and most recently belly-laughed upon discovering that he can snort though his nose.
Its also amazing the lengths to which we go in order to produce a laugh. Ten years ago when I met my husband, I would never have imagined him dancing and singing a silly tune while poking my giggling son's tummy. But now, my husband who claims he can't sing and who utterly refuses to dance will perform both actions as long as they provoke a baby-laugh. I find myself making the silliest of sounds (mostly variants of doo doo doo or Scooby dooby doo or ooh ooh ooh in a deeply-pitched tone - for some reason my son finds this particularly amusing) in parking lots, in shopping malls, in coffee shops and almost all public locations where the two of us wind up together. And lets not forget the one-man-band I become in the middle of the afternoon when its just the two of us; the baby and me, that is.
Baby-laughs are a powerful positive reinforcer. Perhaps I should record them and when I return to work, play them for any student who manages to complete their homework, show up to class on time, or does some other behavior I'd like to see continue. I could attach a speaker to the roof of the car and play the sound clips for drivers who wave when I let them in, who actually stop at the intersection when the light is yellow allowing me to complete my turn, and who wait patiently for me to finish buckling the baby into his car seat while waiting (vulture-like) for my parking spot. Perhaps I could even use the clip to persuade my husband to clean the bathroom sink after he brushes his teeth! Buh-bye little blue globs (sorry, hon)! Oh, the possibilities!